package com.nacos.gateway.comfiguration;
import java.util.Optional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
import springfox.documentation.swagger.web.SecurityConfiguration;
import springfox.documentation.swagger.web.SecurityConfigurationBuilder;
import springfox.documentation.swagger.web.SwaggerResourcesProvider;
import springfox.documentation.swagger.web.UiConfiguration;
import springfox.documentation.swagger.web.UiConfigurationBuilder;

@RestController
@RequestMapping("/swagger-resources")

public class SwaggerHandler {
  @Autowired(required = false)
  SecurityConfiguration securityConfiguration;
  @Autowired(required = false)
  UiConfiguration uiConfiguration;
  SwaggerResourcesProvider swaggerResources;

  @Autowired
  public SwaggerHandler(SwaggerResourcesProvider swaggerResources) {
    this.swaggerResources = swaggerResources;
  }

  @GetMapping("/configuration/security")
  public Mono<ResponseEntity<SecurityConfiguration>> securityConfiguration() {
    return Mono.just(new ResponseEntity<>(
        Optional.ofNullable(securityConfiguration).orElse(SecurityConfigurationBuilder.builder().build()), HttpStatus.OK));
  }

  @GetMapping("/configuration/ui")
  public Mono<ResponseEntity<UiConfiguration>> uiConfiguration() {
    return Mono.just(new ResponseEntity<>(
        Optional.ofNullable(uiConfiguration).orElse(UiConfigurationBuilder.builder().build()), HttpStatus.OK));
  }

  @GetMapping("")
  public Mono<ResponseEntity> swaggerResources() {
    return Mono.just((new ResponseEntity<>(swaggerResources.get(), HttpStatus.OK)));
  }
}
